﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using GraphDrawer.GraphProvider;

namespace GraphDrawer {
	public partial class GenerateNetwork : UserControl {
		ArrayOfString parametersTypes;
		public Graph graph;

		public GenerateNetwork() {
			InitializeComponent();
			generators.IsEnabled = false;
			Description.Text = Resource.GenerateNetworkDescription;
			WizardMenu.graphProvider.GetAvailableMethodsOfGeneratorCompleted += new EventHandler<GraphDrawer.GraphProvider.GetAvailableMethodsOfGeneratorCompletedEventArgs>(graphProvider_GetAvailableMethodsOfGeneratorCompleted);
			WizardMenu.graphProvider.GenerateGraphCompleted += new EventHandler<GenerateGraphCompletedEventArgs>(graphProvider_GenerateGraphCompleted);
			WizardMenu.graphProvider.GetParametersTypesFromMethodCompleted += new EventHandler<GraphDrawer.GraphProvider.GetParametersTypesFromMethodCompletedEventArgs>(graphProvider_GetParametersTypesFromMethodCompleted);
			WizardMenu.graphProvider.GetParametersFromMethodCompleted += new EventHandler<GetParametersFromMethodCompletedEventArgs>(graphProvider_GetParametersFromMethodCompleted);
			WizardMenu.graphProvider.GetAvailableMethodsOfGeneratorAsync();
		}

		void graphProvider_GetParametersFromMethodCompleted(object sender, GetParametersFromMethodCompletedEventArgs e) {
			ArrayOfString parameters = e.Result;
			panel.Children.Clear();
			foreach (var p in parameters) {
				StackPanel sp = new StackPanel() {
					Orientation = Orientation.Horizontal,
					Margin = new Thickness(0, 10, 0, 0)
				};
				sp.Children.Add(new TextBox() {
					Width = 100
				});
				sp.Children.Add(new TextBlock() {
					Text = GetParameterDescription(generators.SelectedItem.ToString(), p)
				});

				panel.Children.Add(sp);
			}

			this.Height = 150.0 + 35.0 * e.Result.Count;
		}

		string GetParameterDescription(string method, string p) {
			Type res = typeof(Resource);
			string description = (string)res.GetProperty(method + "_" + p, System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Static).GetValue(null, null);
			return description;
		}

		void graphProvider_GenerateGraphCompleted(object sender, GenerateGraphCompletedEventArgs e) {
			graph = e.Result;
			//TODO: remove this
			foreach (var item in graph.Vertices) {
				PairKeyValue val = new PairKeyValue();
				val.Key = "stateName";
				val.Value = "Susceptible";
				item.Keys.Add(val);
			}
			WizardMenu.PopUp.btnOk.IsEnabled = true;
		}

		void graphProvider_GetParametersTypesFromMethodCompleted(object sender, GraphDrawer.GraphProvider.GetParametersTypesFromMethodCompletedEventArgs e) {
			parametersTypes = new ArrayOfString();
			foreach (var item in e.Result)
				parametersTypes.Add(item);
		}

		void graphProvider_GetAvailableMethodsOfGeneratorCompleted(object sender, GraphDrawer.GraphProvider.GetAvailableMethodsOfGeneratorCompletedEventArgs e) {
			foreach (string item in e.Result)
				generators.Items.Add(item);

			generators.IsEnabled = true;
		}

		private void Button_Click(object sender, RoutedEventArgs e) {
			if (generators.SelectedItem != null) {
				string methodName = generators.SelectedItem.ToString();
				ArrayOfAnyType parameters = new ArrayOfAnyType();

				int j = 0;
				for (int i = 0; i < panel.Children.Count; i++)

					switch (parametersTypes[j++]) {
						case "System.Int32":
							parameters.Add(int.Parse(((panel.Children[i] as StackPanel).Children[0] as TextBox).Text));
							break;
						case "System.Double":
							parameters.Add(double.Parse(((panel.Children[i] as StackPanel).Children[0] as TextBox).Text));
							break;
						default:
							break;
					}
				
				WizardMenu.graphProvider.GenerateGraphAsync(methodName, parameters);
			}
		}

		private void ComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e) {
			if (generators.SelectedItem != null) {
				string methodName = generators.SelectedItem.ToString();
				WizardMenu.graphProvider.GetParametersFromMethodAsync(methodName);
				WizardMenu.graphProvider.GetParametersTypesFromMethodAsync(methodName);
			}
		}
	}
}
